Myofasciitis is a series of clinical symptoms caused by edema, exudation and fibrous changes in myofascial and muscle tissues due to cold, humidity and chronic strain. It is a non-specific change of the body’s rich white fibrous tissues, such as fascia, myofascia, ligaments, tendons, tendon sheaths, periosteum and subcutaneous tissues. It is a common but often overlooked or misdiagnosed pain disorder. The main manifestation is diffuse dull pain, especially in the lumbar muscles on both sides and above the iliac crest. It is also common in the muscles of the extremities. Localized pain, chills, skin numbness, muscle spasm and movement disorders. The pain is characterized by morning pain, light during the day and heavy in the evening, and can be triggered by prolonged inactivity or excessive activity. On examination, there are obvious limited pressure points on the affected area, and touching this point can cause pain and radiation. Sometimes a nodule can be palpated in the myofascia, which is called a fascial fat hernia. Due to the rich fibrous tissue of muscle fibers, the fibrous tissue in the fascia decreases in elasticity and undergoes degenerative changes when it is diseased due to inflammation, and the myofascia with inflammatory changes, the sensory nerves in between will be stimulated by the pain-causing substances in the inflammatory environment and the compression of the inflammatory edematous tissues, and consequently cause low back pain and hip pain when the muscle is moved, stretched, elongated or rubbed. The reflex muscle spasm brought about by pain can cause local ischemia and exacerbate inflammatory changes. The pain points are more specific, and when pressed, they produce severe pain at the first touch, even jumping up in pain, and are transmitted to the distant parts of the limbs, so they are called “agonizing pain points”, which is a phenomenon unique to this disease. It is often accompanied by symptoms of the autonomic nervous system, such as coldness in the limbs and visceral pain. Sensitive to changes in climate and environment, muscle spasm, edema, skin thickening, and sometimes subcutaneous striae can be formed. In acute attacks of low back pain, the patient may have great difficulty in moving around and cannot turn over or lie down. In acute attacks of hip pain, the patient may have great difficulty in walking and cannot sit or squat for a long time, while the attacker is in unusual pain. In a small number of patients, the pain may subside completely after an attack, but most of them will still have pain and have another attack after several months or years, and sometimes there are people with frequent low back and hip pain. There are more treatment methods for this disease, physical therapy, heat therapy, acupuncture can relieve the symptoms to varying degrees or temporarily eliminate the symptoms, painful point closure can make the pain disappear immediately, and sometimes the effect is long-term. Diagnosis: 1. Local pain, chills, numbness, muscle spasm and movement disorders. 2.The pain often comes on in the early morning and is relieved or disappears after activity or heat application. 3.There is obvious limited pressure pain. 4.The pain disappears after injection with procaine painful spot. Auxiliary examination: X-ray examination is not abnormal. Laboratory test: Anti-O or blood sedimentation is normal or slightly high.